package com.example.test.service;

import com.example.test.entity.User;
import java.util.List;

public interface IUserService {
    User login(String username, String password);
    User getUser(String username);
    List<User> list();
    void add(String username, String password, int screen);
    void del(int id);
    void update_pass(int id, String password);
    void update_screen(int id, int screen);
}
